AS-3121 is an arnott engineered aftermarket air suspension strut for the rear of the 2011-2018 audi A8 (D4 Chassis) without sport suspension. This new, not remanufactured, assembly replaces the OE strut and features a damper custom-tuned to provide an OE like ride. The arnott strut is built with Tier 1 components including O-rings, bump stop, heavy-duty crimping rings, new air line fitting, connector valve, and a multi-ply, cross-corded, Contintental ContiTech air sleeve. The sleeve is protected by an aluminum can and dust cover and is coupled with a CNC-machined top. This universal replacement audi A8 rear air strut fits the left or right side of the vehicle and is backed by arnott's industry leading warranty.
Features:
- New custom-tuned damper
- Continental ContiTech air sleeve
- Pre-assembled for easy installation
- Designed & assembled in the USA
| Part Number | AS-3121 |
|---|---|
| UPC Code | 815710016964 |
| Product Type | Air Strut |
| Vehicle Fits | 2011-2018 audi A8 (D4 (w/o Sport Suspension)) |
| Vehicle Location | Rear |
| Shock Type | New |
| Damping Type | Custom-Valved Shock |
| Dimensions (H x W x L) | 10.00 x 10.00 x 34.50 |
| OE | 4H0616001AB, 4H0616001AH, 4H0616001M, 4H0616002AB, 4H0616002AH, 4H0616002M |
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Installation guide & video
- 📄 Installation instructions (PDF, 1.3 MB)
- 📄 Technical bulletin (TSB) (PDF, 1.3 MB)


